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首页> 外文期刊>IEEE Transactions on Magnetics >An Iterative Solution to FEM-BEM Algebraic Systems for Open-Boundary Electrostatic Problems
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An Iterative Solution to FEM-BEM Algebraic Systems for Open-Boundary Electrostatic Problems

机译:FEM-BEM代数系统的开边界静电问题的迭代解决方案

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摘要

This paper describes an iterative method to solve efficiently the global algebraic system of equations obtained by applying the hybrid finite element method–boundary element method (FEM-BEM) to the solution of open-boundary electrostatic problems. In the proposed approach, a conjugate gradient (CG) solver is used to solve the FEM equations, whereas the BEM equations are solved by making use of the direct LU solver. To do so, it is convenient to implement the BEM equations in a nonconventional way, by choosing the nodes of the potential as not coinciding with those of its normal derivative.
机译:本文介绍了一种迭代方法,可以有效地解决通过将有限元-边界元混合方法(FEM-BEM)应用于开边界静电问题的求解而获得的整体代数方程组。在提出的方法中,共轭梯度(CG)求解器用于求解FEM方程,而BEM方程则通过直接LU求解器进行求解。为此,通过选择电势的节点与其正导数的节点不重合,以非常规方式实现BEM方程很方便。

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